Let me guess, yet another congresscritter who became a millionaire while "serving" the public. Or has he entered some other lucrative career since leaving Congress?
I have seen it locally. A (Republican) high school teacher, appointed to Planning Commission, elected to City Council, then to County Supervisor, Satate Assembly, State Senate.
Near the start, I noticed he lived in a harborfront place in an expensive neighborhood.
How did he manage that on teacher's pay? He went into politics.
Ouramateur internet phsychologists might give a whirl, to the types that follow that route.
While pushing their democrat socialism on us, Warren and Sanders are already millionnaire$ by virtue of their political careers.